If you've ridden the New York City subway, you know the feeling. You buy a flimsy plastic card that lets you ride the train, and when you try to swipe it at the turnstile, it doesn't work. You swipe again. The machine asks you to swipe again. You swipe again. The machine asks you to swipe again at the same turnstile. This can go on for hours, until you beg an MTA employee to let you through. That's the cursed MetroCard experience, and as of this week, its days are numbered.